Sequencing polymers to enable solid-state lithium batteries

IF 37.2 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Nature Materials Pub Date : 2023-10-16 DOI:10.1038/s41563-023-01693-z

Shantao Han, Peng Wen, Huaijiao Wang, Yang Zhou, Yu Gu, Lu Zhang, Yang Shao-Horn, Xinrong Lin, Mao Chen

{"title":"Sequencing polymers to enable solid-state lithium batteries","authors":"Shantao Han, Peng Wen, Huaijiao Wang, Yang Zhou, Yu Gu, Lu Zhang, Yang Shao-Horn, Xinrong Lin, Mao Chen","doi":"10.1038/s41563-023-01693-z","DOIUrl":null,"url":null,"abstract":"Rational designs of solid polymer electrolytes with high ion conduction are critical in enabling the creation of advanced lithium batteries. However, known polymer electrolytes have much lower ionic conductivity than liquid/ceramics at room temperature, which limits their practical use in batteries. Here we show that precise positioning of designed repeating units in alternating polymer sequences lays the foundation for homogenized Li+ distribution, non-aggregated Li+-anion solvation and sequence-assisted site-to-site ion migration, facilitating the tuning of Li+ conductivity by up to three orders of magnitude. The assembled all-solid-state batteries facilitate reversible and dendrite-mitigated cycling against Li metal from ambient to elevated temperatures. This work demonstrates a powerful molecular engineering means to access highly ion-conductive solid-state materials for next-generation energy devices. Solid polymer electrolytes are crucial for the development of lithium batteries, but their lower ionic conductivity compared with liquid/ceramics at room temperature limits their practical use. Precise positioning of designed repeating units in alternating polymer sequences now allows the Li+ conductivity to be tuned by up to three orders of magnitude.","PeriodicalId":19058,"journal":{"name":"Nature Materials","volume":"22 12","pages":"1515-1522"},"PeriodicalIF":37.2000,"publicationDate":"2023-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nature Materials","FirstCategoryId":"88","ListUrlMain":"https://www.nature.com/articles/s41563-023-01693-z","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}

引用次数: 0

Abstract

Rational designs of solid polymer electrolytes with high ion conduction are critical in enabling the creation of advanced lithium batteries. However, known polymer electrolytes have much lower ionic conductivity than liquid/ceramics at room temperature, which limits their practical use in batteries. Here we show that precise positioning of designed repeating units in alternating polymer sequences lays the foundation for homogenized Li+ distribution, non-aggregated Li+-anion solvation and sequence-assisted site-to-site ion migration, facilitating the tuning of Li+ conductivity by up to three orders of magnitude. The assembled all-solid-state batteries facilitate reversible and dendrite-mitigated cycling against Li metal from ambient to elevated temperatures. This work demonstrates a powerful molecular engineering means to access highly ion-conductive solid-state materials for next-generation energy devices. Solid polymer electrolytes are crucial for the development of lithium batteries, but their lower ionic conductivity compared with liquid/ceramics at room temperature limits their practical use. Precise positioning of designed repeating units in alternating polymer sequences now allows the Li+ conductivity to be tuned by up to three orders of magnitude.

Abstract Image

查看原文本刊更多论文

对聚合物进行测序，使固态锂电池成为可能。

合理设计具有高离子传导性的固体聚合物电解质对于制造先进的锂电池至关重要。然而，已知的聚合物电解质在室温下具有比液体/陶瓷低得多的离子电导率，这限制了它们在电池中的实际应用。在这里，我们表明，在交替的聚合物序列中精确定位设计的重复单元为均匀的Li+分布、非聚集的Li+-阴离子溶剂化和序列辅助的位点到位点离子迁移奠定了基础，有助于将Li+电导率调节多达三个数量级。组装后的全固态电池有助于从环境温度到高温对锂金属进行可逆和树枝晶减轻的循环。这项工作展示了一种强大的分子工程手段，可以获得用于下一代能源设备的高离子导电固态材料。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Nature Materials 工程技术-材料科学：综合

CiteScore

62.20

自引率

0.70%

发文量

221

审稿时长

3.2 months

期刊介绍： Nature Materials is a monthly multi-disciplinary journal aimed at bringing together cutting-edge research across the entire spectrum of materials science and engineering. It covers all applied and fundamental aspects of the synthesis/processing, structure/composition, properties, and performance of materials. The journal recognizes that materials research has an increasing impact on classical disciplines such as physics, chemistry, and biology. Additionally, Nature Materials provides a forum for the development of a common identity among materials scientists and encourages interdisciplinary collaboration. It takes an integrated and balanced approach to all areas of materials research, fostering the exchange of ideas between scientists involved in different disciplines. Nature Materials is an invaluable resource for scientists in academia and industry who are active in discovering and developing materials and materials-related concepts. It offers engaging and informative papers of exceptional significance and quality, with the aim of influencing the development of society in the future.